Daniel Zehrfeld, .NET / C# Software Development

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Description

Committed to your software solutions

20 years of professional experience in developing .NET enterprise solutions.

Seven years of developing clinical documentation systems and connecting medical devices.

Nine years of developing enterprise document processing systems.

Industry field of expertise

Languages

German
Native or bilingual
English
Conversational

Workplace preferences

Can work on-site

Berlin (up to 50km)

COPRA System GmbH
Software Developer / Architect
SOFTWARE PUBLISHING
April 2017 - April 2024 (7 years)
Berlin, Germany
Patient data processing system (medical device): C#, MS-SQL Connection of medical devices: C#, Rx.NET
Web application (Backend): C#, ASP.NET Core, GraphQL, SignalR
Reactive Programming C# .NET ASP.NET Core SQL GraphQL SignalR Back-End Development
Rhenus Home Delivery GmbH
System Developer
LOGISTICS AND SUPPLY CHAIN
June 2014 - March 2017 (2 years and 9 months)
Hoppegarten, BB, Germany
Company's own logistics software: C#, MySql, ASP.NET

Development processes: Jira, Git, TeamCity, Octopus Deploy
C# .NET ASP.NET SQL
OPTIMAL SYSTEMS GmbH
Software Developer
SOFTWARE PUBLISHING
June 2008 - May 2014 (5 years and 11 months)
Berlin, Germany
Document processing system: C#, WPF Microsoft Exchange Server Integration: C#, MAPI
Product planning "E-Mail Management": API and interface creation, MS Office Integration. Project support: Requirements analysis, concept creation.
C# .NET Microsoft Exchange

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Computer Science (Diploma),
TU Ilmenau
2004
Informatik (Diplom),

Backend Web Developer